Musnad Ahmad 1167:75

'Abd al-Rahman narrated to us, from Hammad ibn Salamah, from Hajjaj, from Abu 'Umar, the freed slave of Asma', from Asma' bint Abi Bakr: "The Prophet, peace and blessings of Allah be upon him, had a cloak (jubbah) made of Taylasan, hemmed with silk brocade, in which he would meet the enemy."